<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">

<title>class IO - pty: Ruby Standard Library Documentation</title>


<script src="./js/navigation.js" defer></script>
<script src="./js/search.js" defer></script>
<script src="./js/search_index.js" defer></script>
<script src="./js/searcher.js" defer></script>
<script src="./js/darkfish.js" defer></script>

<script src="./js/jquery-3.2.0.min.js"></script>

<script src="./js/vue.min.js"></script>
<script src="./js/js.cookie.min.js"></script>

<link href="./css/fonts.css" rel="stylesheet">
<link id='rdoccss' href="./css/rdoc.css" rel="stylesheet">
<link href="./css/carbon17.css" rel="stylesheet">

<script type="text/javascript">
  var rdoc_rel_prefix = "./";
  var index_rel_prefix = "./";
  var darkModeCsseHref = "./css/rdoc-dm.css"
  var defaultModeCssHref = "./css/rdoc.css"
  // var cssDarkmode = Cookies.get('darkmode');
  
  if( Cookies.get("darkmode") == "true") {
	$('#rdoccss').attr("href", darkModeCsseHref);
}

//  https://cssdeck.com/blog/simple-jquery-stylesheet-switcher/

document.write('<style type="text/css">body{display:none}</style>');

</script>


</head>
<body id="top" role="document" class="class">
  <!-- this is class.html -->

  <div id='actionbar' >
    <div class='wrapper mdiv'>
      <ul class='grids g0'></ul>
    </div> 
    <!-- VERSION HEADER for 3.3.0.preview2 NOT FOUND -->
  </div> <!-- end action bar -->

  <div class='wrapper hdiv'>

    


    <nav id='vapp' role="navigation">
    <div id="project-navigation">
      <div id="home-section" role="region" title="Quick navigation" class="nav-section">
  <h2><a href="./index.html" rel="home">Home</a></h2>

  <div id="table-of-contents-navigation"  >
    <a href="./table_of_contents.html#pages">Pages</a>
    <a href="./table_of_contents.html#classes">Classes</a>
    <a href="./table_of_contents.html#methods">Methods</a>
  </div>
</div>

      <div id="search-section" role="search" class="project-section initially-hidden">
  <form action="#" method="get" accept-charset="utf-8">
    <div id="search-field-wrapper">
      <input id="search-field" role="combobox" aria-label="Search"
             aria-autocomplete="list" aria-controls="search-results"
             type="text" name="search" placeholder="Search" spellcheck="false"
             title="Type to search, Up and Down to navigate, Enter to load">
    </div>

    <ul id="search-results" aria-label="Search Results"
        aria-busy="false" aria-expanded="false"
        aria-atomic="false" class="initially-hidden"></ul>
  </form>
</div>

    </div>


    

    <button id='toggleThing' @click="toggleNav()" >Show/hide navigation</button>
    <div :class="isOpen ? 'block' : 'hidden' " id='toggleMe'>
      <div id="class-metadata">
        
        
<div id="parent-class-section" class="nav-section">
  <h3>Parent</h3>

  <p class="link">Object
</div>

        
        
        
<!-- Method Quickref -->
<div id="method-list-section" class="nav-section">
  <h3>Methods</h3>

  <ul class="link-list" role="directory">
    <li ><a href="#method-i-expect">#expect</a>
  </ul>
</div>

      </div>
     </div>
    </nav>


    <div id='extraz'><div class='adzbox-index'  >
      
     </div>         
    </div>

    <main role="main" aria-labelledby="class-IO">
    <h1 id="class-IO" class="class">
      class IO
    </h1>

    <section class="description">
    
    </section>

      <section id="5Buntitled-5D" class="documentation-section">





                <section id="public-instance-5Buntitled-5D-method-details" class="method-section">
                <header>
                <h3>Public Instance Methods</h3>
                </header>

                  <div id="method-i-expect" class="method-detail ">
                      <div class="method-heading">
                        <span class="method-callseq">
                          IO#expect(pattern,timeout=9999999)                  &rarr;  Array
                              </span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>
                      <div class="method-heading">
                        <span class="method-callseq">
                          IO#expect(pattern,timeout=9999999) { |result| ... } &rarr;  nil
                              </span>
                            </div>

                            <div class="method-description">
                              <p>The <code>expect</code> library adds instance method <a href="IO.html#method-i-expect"><code>IO#expect</code></a>, which is similar to the <a href="https://www.tcl.tk/man/expect5.31/expect.1.html">TCL expect extension</a>.</p>

<p>To use this method, you must require <code>expect</code>:</p>

<pre class="ruby"><span class="ruby-identifier">require</span> <span class="ruby-string">&#39;expect&#39;</span>
</pre>

<p>Reads from the <a href="IO.html"><code>IO</code></a> until the given <code>pattern</code> matches or the <code>timeout</code> is over.</p>

<p>It returns an array with the read buffer, followed by the matches. If a block is given, the result is yielded to the block and returns nil.</p>

<p>When called without a block, it waits until the input that matches the given <code>pattern</code> is obtained from the <a href="IO.html"><code>IO</code></a> or the time specified as the timeout passes. An array is returned when the pattern is obtained from the <a href="IO.html"><code>IO</code></a>. The first element of the array is the entire string obtained from the <a href="IO.html"><code>IO</code></a> until the pattern matches, followed by elements indicating which the pattern which matched to the anchor in the regular expression.</p>

<p>The optional timeout parameter defines, in seconds, the total time to wait for the pattern.  If the timeout expires or eof is found, nil is returned or yielded.  However, the buffer in a timeout session is kept for the next expect call.  The default timeout is 9999999 seconds.</p>

                              <div class="method-source-code" id="expect-source">
            <pre><span class="ruby-comment"># File pty/lib/expect.rb, line 33</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">expect</span>(<span class="ruby-identifier">pat</span>,<span class="ruby-identifier">timeout</span>=<span class="ruby-value">9999999</span>)
  <span class="ruby-identifier">buf</span> = <span class="ruby-string">&#39;&#39;</span>.<span class="ruby-identifier">dup</span>
  <span class="ruby-keyword">case</span> <span class="ruby-identifier">pat</span>
  <span class="ruby-keyword">when</span> <span class="ruby-constant">String</span>
    <span class="ruby-identifier">e_pat</span> = <span class="ruby-constant">Regexp</span>.<span class="ruby-identifier">new</span>(<span class="ruby-constant">Regexp</span>.<span class="ruby-identifier">quote</span>(<span class="ruby-identifier">pat</span>))
  <span class="ruby-keyword">when</span> <span class="ruby-constant">Regexp</span>
    <span class="ruby-identifier">e_pat</span> = <span class="ruby-identifier">pat</span>
  <span class="ruby-keyword">else</span>
    <span class="ruby-identifier">raise</span> <span class="ruby-constant">TypeError</span>, <span class="ruby-node">&quot;unsupported pattern class: #{pat.class}&quot;</span>
  <span class="ruby-keyword">end</span>
  <span class="ruby-ivar">@unusedBuf</span> <span class="ruby-operator">||=</span> <span class="ruby-string">&#39;&#39;</span>
  <span class="ruby-keyword">while</span> <span class="ruby-keyword">true</span>
    <span class="ruby-keyword">if</span> <span class="ruby-keyword">not</span> <span class="ruby-ivar">@unusedBuf</span>.<span class="ruby-identifier">empty?</span>
      <span class="ruby-identifier">c</span> = <span class="ruby-ivar">@unusedBuf</span>.<span class="ruby-identifier">slice!</span>(<span class="ruby-value">0</span>)
    <span class="ruby-keyword">elsif</span> <span class="ruby-operator">!</span><span class="ruby-constant">IO</span>.<span class="ruby-identifier">select</span>([<span class="ruby-keyword">self</span>],<span class="ruby-keyword">nil</span>,<span class="ruby-keyword">nil</span>,<span class="ruby-identifier">timeout</span>) <span class="ruby-keyword">or</span> <span class="ruby-identifier">eof?</span> <span class="ruby-keyword">then</span>
      <span class="ruby-identifier">result</span> = <span class="ruby-keyword">nil</span>
      <span class="ruby-ivar">@unusedBuf</span> = <span class="ruby-identifier">buf</span>
      <span class="ruby-keyword">break</span>
    <span class="ruby-keyword">else</span>
      <span class="ruby-identifier">c</span> = <span class="ruby-identifier">getc</span>
    <span class="ruby-keyword">end</span>
    <span class="ruby-identifier">buf</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">c</span>
    <span class="ruby-keyword">if</span> <span class="ruby-identifier">$expect_verbose</span>
      <span class="ruby-constant">STDOUT</span>.<span class="ruby-identifier">print</span> <span class="ruby-identifier">c</span>
      <span class="ruby-constant">STDOUT</span>.<span class="ruby-identifier">flush</span>
    <span class="ruby-keyword">end</span>
    <span class="ruby-keyword">if</span> <span class="ruby-identifier">mat</span>=<span class="ruby-identifier">e_pat</span>.<span class="ruby-identifier">match</span>(<span class="ruby-identifier">buf</span>) <span class="ruby-keyword">then</span>
      <span class="ruby-identifier">result</span> = [<span class="ruby-identifier">buf</span>,<span class="ruby-operator">*</span><span class="ruby-identifier">mat</span>.<span class="ruby-identifier">captures</span>]
      <span class="ruby-keyword">break</span>
    <span class="ruby-keyword">end</span>
  <span class="ruby-keyword">end</span>
  <span class="ruby-keyword">if</span> <span class="ruby-identifier">block_given?</span> <span class="ruby-keyword">then</span>
    <span class="ruby-keyword">yield</span> <span class="ruby-identifier">result</span>
  <span class="ruby-keyword">else</span>
    <span class="ruby-keyword">return</span> <span class="ruby-identifier">result</span>
  <span class="ruby-keyword">end</span>
  <span class="ruby-keyword">nil</span>
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                          </section>

              </section>
              </main>



            </div>  <!--  class='wrapper hdiv' -->


<footer id="validator-badges" role="contentinfo">
<p><a href="https://validator.w3.org/check/referer">Validate</a></p>
<p>Generated by <a href="https://ruby.github.io/rdoc/">RDoc</a> 6.4.0.</p>
<p>Based on <a href="https://github.com/ged/darkfish/">Darkfish</a> by <a href="http://deveiate.org">Michael Granger</a>.</p>

  
    <p><p><a href="https://ruby-doc.org">Ruby-doc.org</a> is provided by <a href="https://jamesbritt.com">James Britt</a> and <a href="https://neurogami.com">Neurogami</a>. </p><p><a href="https://jamesbritt.bandcamp.com/">Hack your world.  Feed your head.  Live curious</a>.</p>
</p>
  
  </footer>

<script type="text/javascript">


  let ads  = $("#carbonads-container").children().detach();


  function swapMode() {
    var cookieName = 'darkmode';
    var cssDarkmode = Cookies.get(cookieName);
    console.log("***** swapMode! " + cssDarkmode + " *****");


    if (cssDarkmode == "true") {
      console.log("We have dark mode, set the css to light ...");
      $('#rdoccss').attr("href", defaultModeCssHref);
      $('#cssSelect').text("Dark mode");
      cssDarkmode = "false";
      console.log("swapMode! Now set cookie to " + cssDarkmode);
      Cookies.set(cookieName, cssDarkmode);

    } else {
      console.log("We not have dark mode, set the css to dark ...");
      $('#rdoccss').attr("href", darkModeCsseHref);
      $('#cssSelect').text("Light mode");
      cssDarkmode = "true";
      console.log("swapMode! Now set cookie to " + cssDarkmode);
      Cookies.set(cookieName, cssDarkmode);

    }

    console.log("  --------------- ");
  }


const vueCssApp = new Vue({
el: '#menubar',
data: {
isDark: false
},
methods: {
toggleClass: function(event){
this.isDark = !this.isDark;
}
}
})

const vueApp = new Vue({
el: '#vapp',
data: { 
isOpen: true
},

mounted() {
this.handleResize();
this.manage_mob_classes();
window.addEventListener('resize', this.handleResize)
//this.isOpen !=  (/Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent));
},
destroyed() {
window.removeEventListener('resize', this.handleResize)
},
created() {
//manage_mob_classes();
},

methods : {
isMobile() {
  return (/Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent));
},

  handleResize() {
    if (!this.isMobile()) {
      this.isOpen = window.innerWidth > 800;
    }
  },

  manage_mob_classes() {
    if (/Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent)) {
      $("nav").addClass("mob_nav");
      $("main").addClass("mob_main");
      $("#extraz").addClass("mob_extraz");
      $("#carbonads-container").addClass("mob_carbonads-container");
      this.isOpen  = false;
    } else {
      $("nav").removeClass("mob_nav") 
        $("main").removeClass("mob_main");
      $("#extraz").removeClass("mob_extraz");
      $("#carbonads-container").removeClass("mob_carbonads-container");
      this.isOpen  = true;
    }
  },

  toggleNav() {
    this.isOpen =! this.isOpen ;
    // alert("Toggle nav!");
    console.log("toggleNav() click: " + this.isOpen );
  }
}
})

$("#carbonads-container").append(ads);


$(function() {

    var darkmode = Cookies.get("darkmode");
    console.log("Document ready: " + darkmode);

    if ( darkmode  == "true" ) {
      $('#cssSelect').text("Light mode");
    } else {
      $('#cssSelect').text("Dark mode");
     }

    $('body').css('display','block');
    });

</script>

    
  </body> 
</html>

